Add sorting functions for list to handle parallel rankings (previous)

Today. Do a ranking display function. Need to deal with the situation in parallel. First, it's the rank function of SQL SERVER2005.

I later wondered if it would be possible to implement an extension method for list<t> to achieve a parallel ranking.

Think about it can be achieved. Have this idea to come true.

My idea is that when List<t> calls the Rank method, the T type has an extra attribute to get the rank.

But how to dynamically add properties to the T type ... I think of the dynamic creation of a type.

. NET can dynamically create a type ... .

There are 2 general ways (I only know 2 total ...). I also thought of a dynamic construct lambda using new{} I don't know if I can. I think it should be OK. Never tried (just think))

Mode 1: Use the class under the System.Reflection.Emit namespace. (both directly or indirectly manipulate the IL code)

Mode 2: Use Microsoft.csharp; System.CodeDom.Compiler; This 2-namespace class can be implemented relatively simple.

Let's start by looking at how to create a type dynamically.

Dynamic Create type first name is dynamic.

This method is very simple. is to get 26 uppercase and lowercase letters using ASCII code.

/// <summary>
　　　　　　　 /// 动态创建一个英文名称
　　　　　　　 /// </summary>
　　　　　　　 /// <param name="number">长度</param>
　　　　　　　 /// <returns></returns>
　　　　　　　 public static string CreateEnglish(int number)
　　　　　　　 {
　　　　　　　　　　　 Random random = new Random(DateTime.Now.Millisecond);
　　　　　　　　　　　 List<string> en = new List<string>();
　　　　　　　　　　　 Enumerable.Range(97, 26).ToList<int>().ForEach(t => en.Add(((char)t).ToString()));
　　　　　　　　　　　 Enumerable.Range(65, 26).ToList<int>().ForEach(t => en.Add(((char)t).ToString()));
　　　　　　　　　　　 string reuslt = string.Empty;
　　　　　　　　　　　 for (int i = 0; i < number; i++)
　　　　　　　　　　　 {
　　　　　　　　　　　　　　　 reuslt += en[random.Next(en.Count)];
　　　　　　　　　　　 }
　　　　　　　　　　　 return reuslt;
　　　　　　　 }